MOH: Airborne. 'nuff said
Also, the sluggish aiming system doesn't help. Later in the the game you will encounter Germans with gas masks all of which are harder to kill and the masks themselves are unnecessary. They are Uber-Nazis that are extremely hard to kill as they have, well it at least seems like, 50 flak jackets on underneath their uniform. They wield a heavy machine gun and as you can imagine are very annoying.
Some of these things can really get under your skin and make you feel like this game is crap. But if you like more arcade-like games you will like it. But looking back on it, it was something a little different for a change and over all was OK, but Games like Brothers in arms: Hells Highway and COD 5, I believe, will be much better.